A double-blind study of the effect of ribonucleic acid in senile brain disease.
D000368:Aged; D001927:Brain Diseases / Q000188:drug therapy*; D002986:Clinical Trials as Topic; D006801:Humans; D002537:Intracranial Arteriosclerosis / Q000188:drug therapy*; D008568:Memory / Q000187:drug effects; D008875:Middle Aged; D009048:Motor Skills / Q000187:drug effects; D010919:Placebos; D012313:RNA / Q000008:administration & dosage / Q000627:therapeutic use*; D014705:Verbal Behavior / Q000187:drug effects
D010919:Placebos; D012313:RNA